Filter



FIG. 1 is a top front right perspective view of a filter showing our new design, shown in a first embodiment;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top front right perspective view of the filter of FIG. 1, shown in a second embodiment;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a left elevational view thereof;

FIG. 12 is a right elevational view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom plan view thereof.

The portions shown in the figures in broken lines do not constitute part of the claimed design. 

CLAIM The ornamental design for a filter, as shown and described. 